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V. HIMMER. .ELECTRIC CLOCK.

Patented Jan. 4, 1870.

HVV E NTOR- .Tm/ner @M 20W/yy WfTNEssES: if/Q @tf/@m2 lhttml 5mm anni @Minne VITALIS HIMMER, F NEW YORK, ASSIGNOR TO HIMSELF W. HEISSEN BUT- TLE, AND JAMES MCMULLEN, 0F BROOKLYN, -NEW YORK.

Letters Patent No. 98,594, dated January 4, 1870.

IMPROVEMENT IN ELECTRIC CLOCKS The Schedule referred to in these Letters Patent and making part of the name.

' To all whom it ma/y concern Be it known that I, V1TALIS .HIMMER, of the city, count-y, and State of New York, have invented a new and improved Electric Pendulum-Glock; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art vto make and use the same, reference being had to the accompanying drawing, forming part of this specification.

.Figure 1- represents a face view, partly in section, .of my improved electric pendulum-clock.

Figure -2 .is a. side view, partly iusection, of the same.

Similar letters of reference indicate corresponding parts.

This invention relates- Yto a new' pendulum-clock, which is operated by electricity, in such manner that a very accurate and reliable time-keeper is produced, 'which can readily be regulated, and which will not be ali'ected by diiierences of temprature.

lhe invention consists, chiefly, in suspending a minute weight froman oscillating armature-lever, said weight heilig dropped upon an arm ofthe pendulum, at every other stroke of the same. The weight is just sntiiciently heavy to impart to the. pendulum the power lost by friction and gravity during every two swings, and serres, therefore, to retain it at a uniform rate ot' motion.

The invention also consists in the arrangement of devices for closing and breaking the electric connections, whereby the aforesaid weight is alternately raised and lowered.

A B, in the drawing, are two electro-magnets or coils, set into a flame, 40, a suitable distance apart.

Between them is, on the frame, a pin, a, by which the -auiaturelever D is pivoted.

The said lever has its two ends, respectively, above and below the poles band c ofthe magnets, said poles being preferably flattened on the sides onwhich the annatliredever is attracted.

That end of the lever D which under the pole c, carries a weight, d, or is connected with a spring, or with a permanent magnet, which tends 'to draw it down. Such spring, magnet, or weight may, however, be applied to iheother end, to move it up.

From that end ofthe armature-lever which is to be raised when the circuit is broken, is suspended, by t hair, e, or otherwise, a small weight or ball, E.

llie pendulum F is, by a springplate, G, suspended from a standard, H, which receives one of the wires I, ofthe battery.

'lhe upper portion of the pendulum is made of metal, and has a metallic arm, J, projecting sideways' under the weight E.

On this arm are two vertical pins or tubes, f and llfllien the pendulum swings toward the weight E, the pin f comes in contact with and elevates the Weight, while the pin g comes in contact with a metal spring- -plate K, which is fastened above one end to a' standard L.

rhe free end of the spring K is suspended by a hair, h, or otherwise, from the armature-lever, as shown.

The other wire M, ofthe battery, terminates on the standard L.

The armature-lever is connected with a suitable anchor, N, which engages inthe teeth of a wheel, O.

The a'xle 'i of the wheel O may carry Athe .secondhaud, and also, on tubular stems, the minute and hourhands, if the same are connected therewith by vasuit able system of gearing, indicated in tig. 2.

The-,operation is as follows: A When the pendulum swings toward the weightvE, it will bring its arm J in contact with the spring K,-

and will thereby establish a metallic connection between the wires Ivand M. The electric circuitwill thereby be completed, which will cause theelectromagnets to attract the ends of the arnmture-lever to its poles. The ball E is thereby thrown' upon the' arm J, the pin f not being absolutely necessary, but desirable, las a 'tubular guide for a pin thatv is made to project from the ball.

.Lhe weight of the ball, applied to'one side of the pendulum, is sniiicient to impart to thelsame such additiona-l poweras is necessary to balance the lossby friction and gravity.

At the return stroke (in the direction of the arrow l) of the pendulum, the arm J is drawn away from the spring K. lhe electric current is thereby interrupted, and the magnets AB will cease to attract the armature.

lhe weight D, or its equivalent, will ibcn swing the armature-lever, so as to raise the weight E.

lrlhe current remains broken until, at the next motion. The arm J is again brought in contact with the spring K; then the armature is again `attracted.

Thus, oscillating motion is imparted to the arma` ture-lever, and to the anchor connected therewith, and the anchor will impart intermittent rota-ry motion to the train oi' wheels and to the hands.

The power of the weight E may be regulated hy lengthening or shortening thcpin f, or by shii'ting the said weight nearer to or further from the pivot a.

lhe pendulum-may be made of suitable length.

I am, by this arrangement, enabled to use' a penduother stroke.

Having thus described my invention, I eiuim as new, and desire vto secure by Letters Patent- The combination, with 'the magnet, of osciinting arnmture-ierer D, and weights E d, :is and for the purpose sneeified.

'VITALIS HIMMER.

Witnesses:

ALEX. F. ROBERTS, FRANK BLOCKLEY. 

